diff options
| -rw-r--r-- | sound/soc/soc-dapm.c | 65 |
1 files changed, 42 insertions, 23 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 39f992b..2c4bfdb 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3788,35 +3788,54 @@ int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, } EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); +/** + * dapm_is_external_path() - Checks if a path is a external path + * @card: The card the path belongs to + * @path: The path to check + * + * Returns true if the path is either between two different DAPM contexts or + * between two external pins of the same DAPM context. Otherwise returns + * false. + */ +static bool dapm_is_external_path(struct snd_soc_card *card, + struct snd_soc_dapm_path *path) +{ + dev_dbg(card->dev, + "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", + path->source->name, path->source->id, path->source->dapm, + path->sink->name, path->sink->id, path->sink->dapm); + + /* Connection between two different DAPM contexts */ + if (path->source->dapm != path->sink->dapm) + return true; + + /* Loopback connection from external pin to external pin */ + if (path->sink->id == snd_soc_dapm_input) { + switch (path->source->id) { + case snd_soc_dapm_output: + case snd_soc_dapm_micbias: + return true; + default: + break; + } + } + + return false; +} + static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, struct snd_soc_dapm_widget *w) { struct snd_soc_dapm_path *p; - list_for_each_entry(p, &card->paths, list) { - if ((p->source == w) || (p->sink == w)) { - dev_dbg(card->dev, - "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", - p->source->name, p->source->id, p->source->dapm, - p->sink->name, p->sink->id, p->sink->dapm); + list_for_each_entry(p, &w->sources, list_sink) { + if (dapm_is_external_path(card, p)) + return true; + } - /* Connected to something other than the codec */ - if (p->source->dapm != p->sink->dapm) - return true; - /* - * Loopback connection from codec external pin to - * codec external pin - */ - if (p->sink->id == snd_soc_dapm_input) { - switch (p->source->id) { - case snd_soc_dapm_output: - case snd_soc_dapm_micbias: - return true; - default: - break; - } - } - } + list_for_each_entry(p, &w->sinks, list_source) { + if (dapm_is_external_path(card, p)) + return true; } return false; |
